Improvement in sectional steam-generators



BYRON DENsMoREs, 55mm/AL mam Boum.

Nen/York Ci BYRoN DENsMonE's sier/MAL sri/4M so/Lm.

Fi 4f New Tarif City.

OO OC) OO OO OO OO OO OO OO C@ GO OO OO OQ OO OO OO OO OG (9@ OO OO OO OO dotted statt abort di :fitti Letters Patent No. 108,333, dated October 18. 1870: uitedated0ctobcr4-1870.

IMPROVEMENT IN SEC'l'lONAL STEAM-GENERATORS.

The Schedule referred to in these Letters Patent and making part o1' the same.

tothe i es and the union-nuts screwinc onto the l l 7 a l, Bruck llrvsnonr.. of the city ofNcw York, iu the State ot' i\e\v York, have invented certain" linproveincnts iu Sectional Steam-Boilers, ot' which the following is a specification.

My improvements consist in ao arranging a seetional steam-boiler as to prevent priming; also, to absorb the heat inte the water more pcrt'cctly; also, in so connecting the parts as to prevent leakage, and t0 require less` space and-less brick-work, thus removing,r defects hitherto ex ting in sectional boilers.

Descrip/[vu o f the A ceompanyny Dlcuiny.

Figure 1 is a perspective of myinventiou.

Figure is a transverse elevation.

Figure i is a longitudinal tivvation.

Figure L is a plan et' the same,

The sections oy are made ot' Cast-iron, and when Lwoinch tubes are used, are about six and one-lmlfincbcs square, and from three totbrec undone-halt" feet long, the water-space being tive and onc-qnartcr inches square.

The front, sides are widened on both edges, so that cach section tills a space ot' seven and one-eighth inches in width.

The sections t'oriu the sides oi' the, boiler, touching leaving a space ot' each other only at the outer edges, tive-cighths of nn inch between the sections, so that the heat acts on three sides ot'thein.

The tubes l are placed transversely lightly inclined t'ronl the horizontal. lhcrc are two rows up and down in cach section, inc-lining,r in opposite directions, which gives an active circulation to the water in the tubes, and causes the 'atcr to keep at the same level in the sections at cach cull ofthe tubes.

The tubes arc screwed into the sections with right and lct`t-band screws, ot' tine. lead `and very little taper.

Over the two-inch tubes in each section is placed a sevcn-inch tube, e, horizontally, having heads welded into the ends, and being connected to the sections by two-iuch nipples, one ot' theI nipples being rightand lett. Une ot' these nipples is placed as low down ony the tube for the admission of water, :unl the other as high up t'or the exit ot' steam, as is practicable.

The sections a have a round projection or bl ou each cud, one and oue-quartcr inch long, and ot'sutlicient diameter to screw for a two-iuch union-nut. .ihere is a two-inch hole in these bo. into the water-space. lhe ends ofthe boss s a1 cell oti'in thc lathe when they are screwed.

The pipes D D and l) E may be oteitber wrought',- iren or cast. Cast is thought; preferable, should bc four inches inside diameter, and, itcust, tire and oncqnartcr outside. i

The sections arc connected to these pipes by means ot't\vo-incb unions, one part of the union screwing in- I the bosses ou the ends of the sections. These unions are. packed with the metallic spring gasket patented by me December, ISHS.

The pipes I) l) are connected togcthcrat cach end by the transverse pipes i" lf, tig. 3, and the pipes :v connected atr eaeh end to tbe stean'i-cylilnler G, b v 1 inclined pipes ll ll, which arc three inches diann The steum-cyiimler (t is twenty-four inches dion ^r.

K is ar stay-rod l'rom head to head, two inches in diameter.

The corner pipes ll L ll ll nrc three inches diameter, and may be ot' wrought-iron, with a right and lett hand screw, ormay be ot'cast-irom'aiul connected to the pipes D l) and lv l bv Lwo r ht :unl left nipples, or by one right nipple and one right and lelt,

M is a plate ot'iron that is hun;r in the upper edge, touching the rcar large tube, and extcmliirn down four tubes between the small tubes, to torce the draught downward, and to equalize the beat amongr the tubes.

I is a pipe connecrinf,r the steam-eylinder (i and one of thepipes l) l). lt; enters the steaul-cylhnler two or three inches t'roin the bottom ol' it, so that, when thc water rises that binlriu the cylinder. it will tiow to the bottoni ol'the boiler.

'.lhc spaces between the largl: Lubes' are stopped with fire-mortar.

N is a brick arch, resting on tlanges prout-ting out at the top ot the sections u tor that purpose. The front; is ot' light cast or wrought-iron, lined with tire brick. The toundation-wall should be er hr inches thick ti'onl the t'ront to the bridge-wall U, and twelw inches thick troni thento the rear end ot tho boiler. the outsides being linsh with the boiler and a wall tbur inches thick carried up along the inside ot' the pipes l) l), and lap onto the a-elions fr, to stop the opening between the sections and pipes bark otV the bridge-woll.

The top edges ol' the grati-s l Ishould bc placed about as high as the collier ot' tlnI pipes l) l), and lirolu inks soton cud between thc gmtcsuud sections, the lower ends resting on the tonudation-wall, and the upper end lappinfr up onto the lower ends ot' thev ser tions, thus stoppilmr the openingT betn een thc sections, and pipes ll-l) beine held in their position by the gratcs.

lhe seven-inch tubos are omitted iu one, two, or three ofthe` rear sections, according to the size ot'the boiler, t'or a tlue-way to the upper chamber ol' the boiler; The rear end of thc boiler is stopped with brick-work` '.lhc arrows indicate the direction ot the draught.

q q l/ l] are plugs. The upper ones are placed ou a level with thc nipples that connect the large tubes to sections, for convenience ci' cleaning out the large tubes, and the lower ones are for the convenience of cleaning out the lower ends of the sect-ions.

-There should be two blow-olf cocks, on opposite corners of the boiler. Then the ppes'l) D will blow out clear.

The circulation of the water in the small tubes is so rapid that they do not scale.

The water-line is through. the center ot' the large tubes, which gives a largt` surface to evaporate from,

`which leaves about seven inches in height from the water-lino to the tops of the sections, which gives good room for the steam to separate from the water before it passes through the small openings into the Y pipes E E. In these pipes the steam ons from the center toward the ends. Here again the water and At the steam have a good opportunity to separate.

ends the steam passes up the pipes H into the steameylinder, and the water falls down the pipes L L LL. Hence7 in no ease does much water get into the steamcylinder.

I claim as my invention- 1. The combination of the sections a and tubes b, substantially as set forth.

2. The combination of the sections zo and the pipes D l) and 1'] E, substantially as specified.

3. The combination ofthe pipes D D and E E and L L L L, snbstantiall)- as set lhrth.

' BYRON DEN SHORE.

Witnesses:

MARY E. Dnxsnonn, ABRAHAM Onetn. 

